baber/WOPTO huggingface dataset:
Patent GB-528247-A (GB)
Title: Improvements in alternating current control arrangements
IPC: B23K11/24
Filed: 1939-03-20
Abstract: 528,247. Welding. BRITISH THOMSON-HOUSTON CO., Ltd., WHITELEY, A. L., and HIGGINS, B. G. March 20, 1939, No. 8861. [Class 83 (iv)] [Also in Group XXXV] In supplying a load such as a welding circuit 2 from an A.C. source 1 for pre-determined time intervals through a controlled electric valve, provision is made for automatically reducing the average value of the current over the later part of each operative period in order, in the case of welding operations, to apply post-weld heating to the work. Control is effected by a pair of oppositely-connected valves 3, 4 of the immersion-igniter type connected in series with the load and to which ignition potentials are applied through gridcontrolled valves 48a, 48b, 49a, 49b. The grids of the latter are supplied with (a) blocking potentials from transformers 50, 72 the voltages of which are phase-displaced 180 degrees' from the anode voltages, (b) releasing potentials from a circuit 7 determining the duration of the operative periods, and (c) peaking potentials from a circuit 8 operative to determine the instant in each anode voltage cycle at which the valves begin to conduct. The two last mentioned voltages are differently timed for the valves 48a and 48b respectively so that one of them operates to determine the duration of and the average value of current supplied to the load during the earlier part of each operative period and the other, which receives retarded ignition impulses, operates to determine the lower value and the duration of current during the later part of each operative period. The circuit 7 is controlled by a main timing valve 27 which is rendered operative by closure of relays 19. Condensers 30, 33 thereupon commence to charge through resistances 28, 31 which respectively determine the time during which the two charging currents flow. While condenser 30 is charging, valves 36, 38 are operative to pass A.C. through inductance 72, and thus transformer 25 is energized and supplies releasing potentials to valves 48b, 49b. This determines the duration of the earlier part of the operative period, in which the average value of the current supplied to the load is determined by the phase of the peaking potentials supplied by the part 8a of the circuit 8. Similarly, while condenser 33 is charging, transformer 26 is operative to supply releasing potentials to valves 48a, 49a. This determines the duration of the later part of the operative period in which the average value of the current supplied is determined by the phase of the peaking potentials supplied by the part 8b of the circuit 8. Where it is desired to increase the pressure applied to the welding electrodes over a part of each operative period there is provided a further timing circuit 100 operative to close the contacts of a relay 20 adapted to energize means for increasing the electrode pressure.
Patent GB-441805-A (GB)
Title: Process for the production of preparations containing the active constituents of vegetable products
IPC: A23L33/105
Filed: 1935-03-21
Abstract: Freshly gathered plants are triturated with honey, in place of the non-crystallizing sugars referred to in the parent Specification. According to one example salvia officinalis is triturated with honey and packed in starch capsules which may be p  wrapped in tinfoil; if desired a preservative may be added. According to a second example peppermint is triturated with honey with the addition of formic acid, and the product dried in a current of air at room temperature.  Known preparations comprising (1) fennel syrup, honey, and fennel-oil sugar, (2) alcoholic extract of rose petals, honey and glycerine, and (3) honey and acetic vegetable extracts, are referred to.
Patent GB-932956-A (GB)
Title: Coke calcination and desulfurization process
IPC: C10L9/04
Filed: 1960-03-14
Abstract: In a process of calcining and desulphurizing coke particles, particularly coke particles produced by coking heavy hydrocarbon oils, the particles are maintained as a fluidized bed in a calcining zone wherein they are heated to a temperature between 1300 DEG  and 1900 DEG F. by applying to the bed a suitable electrical voltage and whereby a hot hydrogen-containing gaseous stream of expelled volatile matter is liberated and employed in a separate fluidized desulphurization zone maintained at a temperature between 1300 DEG and 1500 DEG F.  The sulphur content of the treated coke is less than 3% by weight.  In the apparatus shown green coke is fed by line 317 to a desulphurization zone 310 and desulphurized coke particles pass via line 329 to an electrically heated calcination zone 311. <PICT:0932956/III/1> Hydrogen containing gas liberated in zone 311 passes into zone 310 by line 316 and calcined and desulphurized coke particles are withdrawn through pipe 330.  Gas leaving the desulphurization zone may be recycled to the calcination zone after being cooled, freed from hydrogen sulphide and compressed.  In a modification the green coke is fed first to the calcination zone.
Patent GB-625988-A (GB)
Title: Improvements in and relating to photographic exposure meters
IPC: G01J1/42
Filed: 1947-04-02
Abstract: 625,988. Photographic exposure meters. MACADIE, H. S., and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd. April 2, 1947, No. 8966. [Class 98 (i)] [Also in Group XL (b)] In an exposure meter of the kind described in Specification 458,546 in which a knob 27 carrying a scale of exposures which are read against a fixed scale of apertures gives a non- linear movement to a pointer 24 to bring it into coincidence with the pointer 22 of a photo-electrically actuated galvanometer, a light-reducing shutter comes into action when the pointer 24 is brought to one extreme position and is withdrawn when it is brought to the other. After an initial setting of the exposure scale relatively to the knob in accordance with the emulsion speed, the knob is rotated, driving cam 26 to give appropriate motion to pointer 24, by means of a bar 33 engaged by pins 35, 30 on the cam and knob assembly respectively and held by an S-shaped spring with the pin 30 at either end of a slot 31. In the extreme clockwise position, the cam comes up against a stop and further rotation of knob 27 brings the pin 30 to the other end of the slot. At the same time the arms of a U-shaped member 72 are engaged by ramps on the knob assembly so that the member moves axially and rocks a lever 55, Fig. 11, to bring a shutter 52 between the window and the photocell 20. At the extreme counter-clockwise position, the converse operation takes place. The position of the cam in relation to the knob is shown by an arrow 81 on a bolt 80 which holds the parts together and is unable to rotate relatively to the cam. If the bar 33 sticks in the dead-centre position it is moved into correct position, as soon as the knob 27 is turned, by engagement of a nose on the bar with one of two fixed stops 67, 68. According to the Provisional Specification, U-shaped member 72 may be replaced by a pair of balls mounted in holes in the cam.
Patent GB-772872-A (GB)
Title: Improvements in or relating to the activation of catalytic materials containing alumina supports
IPC: B01J21/16
Filed: 1954-03-26
Abstract: An unused hydroforming catalyst support comprising alumina is treated at atmospheric pressure with an oxidizing agent and a dilute aqueous solution of a non-metallic halide.  Oxidizing agents specified are nitric, perchloric and hypochlorous acids while in a modification of the method gases containing oxygen such as air and ozone may be used at higher pressure.  Non-metallic halides specified are all the hydrogen halides.  The catalyst, which may be a wide variety of metals, together with promoters. can be deposited on the support, which may contain a wide variety of materials in addition to alumina, either before or after the above treatments.  The usual catalyst treatments, such as calcination and reduction are also described.
Patent GB-290793-A (GB)
Title: Improvements in or connected with purifiers for use in the manufacture of gas
IPC: C10K1/22
Filed: 1927-04-01
Abstract: 290,793. Whessoe Foundry & Engineering Co., Ltd., and Chambers, R. L. April 1, 1927. Purifiers.-The cover C of a purifier A is raised by a hand-operated lifting tackle e.g. of the davit or runway type and is supported in its raised position over the purifier by pivoted or auxiliary supports 6, whilst the charged is renewed. Guys 3, struts &c. may be provided to restrain the cover from tilting. One set of removable davits may be used for a battery of purifiers or one set of tackle used with the davits provided for each purifier. The covers which may be domed for circular purifiers may comprise steel plates with radial rafters on the top face and eccentric purlins on the underface.
Patent GB-1204360-A (GB)
Title: A portable writing panel unit embodying counting apparatus
Inventor: ROWLEY PERCY WILLIAM
IPC: G09F11/23
Filed: 1967-12-08
Abstract: 1,204,360. Counting apparatus. P. W. ROWLEY. 6 Dec., 1968 [8 Dec., 1967; 23 Feb., 1968], Nos. 56035/67 and 9009/68. Heading G4D. A writing panel encloses a counting wheel 11, visible through both front and rear walls, which is advanced by operation of a slide 12 which is returned to normal position under spring action. The wheel 11 rests in a cavity and has no pivot. A number of panels may be assembled one above another by means of projections 14 and notches 15, transfer being effected through spring-pressed pawls 16, 21.
Patent GB-422823-A (GB)
Title: Improved construction of sleeve used with tubes of heat exchangers
IPC: F28F1/12
Filed: 1934-03-22
Abstract: 422,823. Tubes for heat-exchangers. LIVSEY, H., Economiser Works, Calder Vale Road, Wakefield, Yorkshire. March 22, 1934, No. 9015. [Class 64 (iii)] The sleeves 1 of heat-exchange tubes are formed with projections having a circular, oval, or other cross-section and ribs 4, Fig. 7, or 5, Fig. 9. The sleeves may be formed of segmental sections.
Patent GB-541345-A (GB)
Title: Improvements in or relating to screws or connections for securing joints between wood and other solid substances
IPC: F16B25/00
Filed: 1940-05-22
Abstract: 541,345. Bolts bolting;; wood-screws OSMOND, G. E. May 22, 1940, No. 9097. Addition to 521,842. [Classes 89 (i) and 89 (ii)] [Also in Groups XXII and XXIII] In making joints as described in the parent Specification the parallel headless screws are tubular in form so that they may serve also as bushes or for the passage of electric conductors &c. The ends may be notched at C to render the screws, self-tapping. The screws may be formed by corrugating thin metal tubing. The screws may be inserted by a tommy bar with a cross pin G to engage notches E or with a screwed end terminating in an abutment shoulder for use with the corrugated screws.
Patent GB-1196986-A (GB)
Title: Fumigating Composition
Inventor: CHINNERY ANTHONY BERNARD
Filed: 1968-02-26
Abstract: 1,196,986. Fumigating composition. ETOXIN Ltd. 20 Feb., 1969 [26 Feb., 1968], No. 9128/68. Heading A5E. A fumigating composition for horticultural use comprises 20 (to 60% of ethylene oxide and 80 to 40% of methyl bromide. The composition finds particular application in the fumigation of mushroom houses.
Patent GB-806563-A (GB)
Title: Improvements relating to organopolysiloxane compositions
IPC: C09C1/30
Filed: 1957-03-20
Abstract: A finely-divided hydrophobic silica filler having reduced tendency to induce structure when incorporated in a siloxane convertible to the solid, elastic state (see Group IV (a)) consists of silica aerogel, fume silica or precipitated silica coated with octamethyl-cyclotetrasiloxane.  The treatment of the silica may be effected either (1) by mixing it with the cyclic siloxane in amount from 5 to 10 per cent by weight of the silica and heating the mixture at 150 DEG  to 350 DEG  C. and at normal or reduced pressure to cause volatilization of the siloxane and diffusion thereof through the silica particles with consequent replacement of moisture on the silica by a thin film of the siloxane; or (2) by continuously introducing, in a heated atmosphere the finely-divided silica and siloxane into an air-jet mill (see article entitled "Efficient Particle-Size Reduction" in July, 1955 issue of "Chemical Processing".ALSO:A composition having reduced structure and lower knit time comprises (1) an organopolysiloxane convertible to the cured, solid, elastic state and containing an average of from 1.98 to 2.05 organic radicals per Si atom, and (2) a structure inducing filler, selected from silica aerogel, fume silica and precipitated silica, treated with octamethylcyclotetrasiloxane (see Group III). The convertible siloxane may contain methyl, ethyl, propyl, vinyl, allyl, phenyl, tolyl, xylyl, benzyl, phenylethyl, naphthyl, chlorophenyl or tetrachlorophenyl radicals bonded to silicon. Siloxanes containing methyl or methyl and phenyl radicals are preferred.  The structure-inducing filler may be used in amount from 10 to 200 per cent by weight of the siloxane. Non-reinforcing fillers, untreated or treated as above, may also be added, e.g. titania, lithopone, zinc oxide, ferric oxide, zirconium silicate, diatomaceous earth, fine sand, and calcium carbonate.  The compositions may be cured by means of curing agents, e.g. benzoyl peroxide, tertiary butyl perbenzoate or bis-(2 : 11-dichlorobenzoyl) peroxide or by highenergy electron irradiation.  The compositions may be moulded, e.g. at 100 DEG  to 200 DEG  C. from 5 to 30 minutes at pressures from 10 to 1000 p.s.i., and further heat-treated for 1 to 36 hours at 150 DEG  to 250 DEG  C. Examples are given.  Where desired, solvents, e.g. toluene, xylene and butanol, may be used to make dispersions for coating and impregnating sheet materials, e.g. glass cloth, asbestos cloth and mica sheets, fibres and finely-divided fillers, e.g. mica, glass fibres and asbestos floats, for subsequent use in making heater ducts or for electrical insulation.
Patent GB-160795-A (GB)
Title: Improvements in and relating to internal combustion engine cooling systems
IPC: F01P3/22
Filed: 1921-03-24
Abstract: 160,795. Mallory, H. C. March 24, 1921. Cylinders, cooling.-In cooling systems in which steam or vapour is generated in the cylinder jackets 4 and condensed in a condenser 10 and the liquid returned to the jacket, the temperature of the liquid is maintained by forming a partial vacuum in the jacket by a pump or by the suction in the induction pipe 21 acting through a pipe 20. The vacuum is regulated by a relief valve 18 on the condenser. The pipe may contain a steam trap, Fig. 2, comprising a rod 24 which expands sufficiently at the boiling point to close the outlet 23; at lower temperatures moist air passes the non-return valve 22. The pipe for returning the water of condensation may lead up to the water level in the jacket where the water overflows into a surrounding pipe which discharges into the bottom of the jacket. The steam trap may be situated in a chamber above the overflow. An additional radiator and condenser 26 may be used.
Patent GB-116925-A (GB)
Title: Improvements in and connected with Electrical Boat Raising and Lowering Apparatus.
IPC: B63B23/18
Filed: 1917-06-27
Abstract: 116,925. West & Co., A., West, A., and Pickett, F. N. June 27, 1917. Constant-tension and tension-regulating winding and paying-out apparatus. - In electricallv-actuated boat raising and lowering gear, in which the slack of the ropes is taken up automatically when the boat is water borne, a main motor M and an auxiliary motor A are coupled to the hoisting drum, both these motors exerting their full torque and assisting each other when hoisting, but the auxiliary motor A being connected in series with a resistance when lowering so that it exerts a torque in the hoisting direction which is just sufficient to raise the tackle if no boat is on the hooks. Power may be momentarily supplied for giving the motor M a " kick off " in the lowering direction by actuating the push button P. The hooks may be released when the boat is water borne by again closing the push button switch P until the motor M has rotated the drum sufficiently to pay out the necessary slack. The motor connexions are shown in Figs. 1 and 2. When hoisting, the switches 1, 6 are closed and the lifting &c. controller closes the switches 5, 4, 3, 2 in succession to cut resistance out of the circuit. When lowering, the switches 1<a> and 6 are closed and the switches are closed in the order 2, 3, 4, 5. In all positions of the auxiliary motor controller, the switches 7, 12 are closed and the required resistance left in the circuit.
Patent GB-764766-A (GB)
Title: Damper winding for turbo-generator rotors
IPC: H02K3/16
Filed: 1955-03-30
Abstract: 764,766. Damping windings for dynamoelectric machines. AKT.-GES. BROWN, BOVERI & CIE. March 30, 1955 [April 21, 1954], No. 9242/55. Class 35. In a turbo-generator rotor having a shortcircuited damping winding d carried in the same slots as the excitation winding a, the excitation winding is reduced in section just before it leaves the slot so as to make room for the endloops of the damping winding. As shown, the damping winding, which is separated from the main winding by insulation b, is of single layer where it passes through the length of the slot, but just before emerging, it turns into a double layer overhang under the rotor cap e. The conductors are bent tangentially to form a pair of laminated rings f, f<SP>1</SP> which are in electrical contact. A modification is described in which a single-layer overhang is used, the slot-wedges c being used as conductors along the length of the slot.
Patent GB-513650-A (GB)
Title: Improvements in closures for evacuated envelopes
IPC: H01J5/20
Filed: 1938-03-25
Abstract: 513,650. Uniting metal to vitreous material. HYGRADE SYLVANIA CORPORATION. March 25, 1938, No. 9258. Convention date, March 31, 1937. [Class 36] [Also in Group XL] In an evacuated envelope, e.g., an electric discharge tube of the sealed-off evacuated type having a metal body portion with a vitreous closure member, the vitreous member having a rigid metal frame sealed therein in a vacuum-tight manner and sealed to the metal body portion, the body portion is provided with means to support the vitreous member against atmospheric pressure substantially independently of the frame. A cathode-ray tube comprises a frustro-conical metal body 2, Fig. 1, secured by a sealing ring 3 of an alloy having substantially the same coefficient of expansion as glass to an elongated neck 1 of glass. Any known arrangement of electrodes, e.g., that of Specification 502,124, [Group XX], is mounted in the neck. A massive transparent window 7 is provided with a rim 8 sitting in a shoulder 5 of the body portion 2, and is sealed to the body by a thin rigid metal frame 9, which is sealed into the window by the method of Specification 504,934, and which has a flange 10 which is welded, brazed or otherwise sealed to a flange 6 on the body. To prevent gas being trapped between the rim and the seal the rim may be provided with channels or with spacing projections, or the shoulder 5 with spacing projections. In the case of a valve a ceramic base 18, Fig. 6 is sealed to a frame 21, and seats on a shoulder 16 on the metal casing of the valve. A flange 22 on the frame is sealed to a flange 17 on the casing. Metal contact prongs 19 pass through the base 18. The frames 9 and 21 and the sealing ring 3 may be of the alloy sold under the Registered Trade Mark " Kovar " comprising 18 per cent. cobalt, 28 per cent. nickel and 54 per cent. iron, and the flare 4 of the neck 1 is of the glass sold under the Trade name " Corning 705 AJ." The invention may be applied to discharge tubes such as iconscopes and image dissectors and the window may be of any shape and situated on any part of the tube. Specification 505,632, [Group XL], also is referred to. The Specification as open to inspection under Sect. 91 comprises also a method of uniting the conical part 4 of the neck to the ring 3 by moulding the neck about the ring, clamping the assembly in an air tight jig and sealing on the elongated portion 1, or alternatively by mouting a preformed neck in a head stock, and the ring in a chuck and rotating under heat. This subject-matter does not appear in the Specification as accepted.
Patent GB-327279-A (GB)
Title: An improved hanger for use in drying wearing apparel
IPC: D06F59/02
Filed: 1929-03-22
Abstract: 327,279. Hobbs, N. March 22, 1929. Garment hangers. - A garment hanger consists of a rigid rectangular &c. frame, with a curved top member a, having slidable lateral projections to support the sleeves. In the construction shown in Fig. 1, the frame has a cross-bar e of channel section to receive sliding rods f. The rods f are slotted and pivot on pins g so as to fall, when pulled out, against the side members d of the frame which may each consist of two bars spaced apart to receive the rod f between them. In a modification shown in Fig. 3, the projecting ends of a bar h, slidably mounted on the side members d, are provided with clamping pieces h<1>.
Patent GB-639771-A (GB)
Title: Improvements in shedding mechanism for looms
IPC: D03C5/02
Filed: 1946-03-26
Abstract: 639,771. Loom-shedding mechanism. PICANOL, J. March 26, 1946, Nos. 9319 and 9320. Convention dates, Dec. 3, 1940, and May 15, 1941. [Class 142 (i)] In tappet mechanism employing conjugate cams to actuate each heald shaft, the cams 6 are arranged on a common shaft 11 and the followers 1, 2 subtend an angle of 60 degrees to 180 degrees. The bosses 4 of the levers 7 form a cylindrical surface which closes the slot in the casing 9 through which the levers protrude, thereby enabling the mechanism to run in an oil bath. The healds can be brought to the same level, under their own weight, by swinging the cams away from the followers, synchronism with the rest of the loom being ensured by a gear on the camshaft 11, which rolls round another gear as the cams are brought into and out of operation.
Patent GB-472838-A (GB)
Title: Improvements in or relating to water heating installations
IPC: F24H1/18
Filed: 1936-03-31
Abstract: 472,838. Heating water. REYROLLE & CO., Ltd., A., CRAWSHAW, I. J. S. A., and RITSON, T. March 31, 1936, No. 9515. [Class 64 (i)] A water-heating installation of the kind in which a small heater A is connected by inlet and outlet pipes B, F, to a hot water storage tank D connected by flow and return pipes D<1>, D<2> to radiators or the like, the return pipe D<2> being connected to the bottom of the tank and in which the inlet pipe B of the heater has a thermostatically-controlled mixing valve C supplied with cold water through a pipe B2 from the bottom of the tank and with hot water through a pipe E from the top of the tank or from the flow pipe F of the heater, is characterized by connecting the hot water pipe E to the tank at a level above that of the outlet pipe D<1>. The space in the tank between the levels of the pipes D<1>, F is sufficient to fill the heater A, which preferably has electrodes A<1>. The pipe F is closed at the end and perforated along its length within the tank, within which baffles may be placed to minimize turbulence. An auxiliary storage vessel may be arranged above the tank in circuit in the flow pipe F and is connected by the pipe E to valve C. An auxiliary heater, preferably of the immersion type, may be arranged in the tank D or in the auxiliary vessel.